Abstract: A knife comprising a handle and a blade assembly. The blade assembly includes a blade, a tang, and blade assembly connection structure. The handle includes a receiver configured to receive the tang, and includes handle connection structure. The blade assembly connection structure and handle connection structure are arranged to releasably lock the blade assembly in an installed position on the handle with the tang in the tang receiver.

Abstract: An anti-cant indicator assembly, components thereof, and associated methods. The anti-cant indicator assembly indicates the orientation of a weapon with respect to vertical. The anti-cant indicator assembly includes a mount configured to mount to the weapon, a level including a vial containing a bubble and a pivot connection connecting the level to the mount. The pivot connection is configured to permit movement of the level with respect to the mount about the pivot connection between an operational position in which the bubble can be referenced by the user for indicating orientation of the weapon with respect to vertical, and a stowed position different from the operational position. The pivot connection can include a retainer configured to releasably retain the level in at least one of the operational position or the stowed position. The level can be selectively movable with respect to the mount to calibrate the anti-cant indicator.

Abstract: A post driver for installing a post includes a post receiver. The post receiver has a post receiver body defining a post receiving space with an open end and an opposite closed end. The post receiving space is sized and shaped to receive an upper end portion of the post. The post receiver body has an outer surface. The post receiver includes a post receiver cover connected to the post receiver body and at least partially covering the outer surface of the post receiver body. A first handle is connected to the post receiver and a second handle is connected to the post receiver.

Abstract: Closed loop wellbore configurations with unrestricted geometry for accommodating irregular or challenging thermal gradients within a thermally productive formation are disclosed. A working fluid is utilized in the loop for extraction of thermal energy there from. The loop and the unrestricted geometry are achieved using magnetic ranging of independent drilling operations which intersect from an inlet well and outlet well to form an interconnecting segment. In conjunction with the directional drilling, conditioning operations are incorporated to condition the rock face, cool the entire system, activate the wellbore for treatment to optimize thermal transfer inter alia. The significant degree of freedom in wellbore configuration is further optimized by the absence of mechanical impediments such as casing or liners in the heat transfer areas.

Abstract: A security enclosure, components thereof, and associated methods. In one embodiment, the security enclosure is sized and shaped to hold a firearm, and the security enclosure can include a monitor configured to communicate status information to a remote system or device.

Abstract: Bulk nanocomposite materials comprising a solid support material and a plurality of elongated nanostructures distributed within the solid support material, and related systems and methods, are generally described. The elongated nanostructures occupy a volume fraction of at least 5 vol. %; less than or equal to 20 vol. % of the domain is occupied by voids having a volume of at least 10<7>micrometer<3>; the domain comprises a first dimension having a length of at least 1 centimeter; and the domain comprises a second dimension that is perpendicular to the first dimension, the second dimension having a length of at least 1 centimeter.

Abstract: Embodiments of the disclosure relate to a method of controlling tension on a buffer tube produced on a buffer tube processing line. In the method, the buffer tube is directed through a compression caterpillar. A speed of and a gap between drive belts of the compression caterpillar are set to achieve a desired tension on the buffer tube. Tension on the buffer tube is measured as the buffer tube passes between the drive belts. It is determined whether the measured tension on the buffer tube is within an acceptable range, and the gap between the drive belts is decreased in increments while the buffer tube passes between the drive belts until the tension is within the acceptable range.

Abstract: A shooting rest, components thereof, and associated methods. The shooting rest includes a frame, a forward firearm support connected to the frame, and a rear firearm support connected to the frame. The rear firearm support includes a stop configured to limit rearward movement of the firearm with respect to the frame when the firearm is fired. A liquid tank is supported by the frame and is configured to hold liquid to increase the effective mass of the shooting rest to reduce recoil felt by a shooter when the firearm is fired.

Abstract: Wellbore synthesis techniques are disclosed suitable for use in geothermal applications. Embodiments are provided where open hole drilled wellbores are sealed while drilling in sequenced operations with utilization of phase change materials to form an impervious layer at the wellbore/formation interface in high temperature applications. The techniques may be chemical, thermal, mechanical, biological and are fully intended to irreversibly damage the formation in terms of the permeability thereof. With the permeability negated, the wellbore may be used to create a closed loop surface to surface geothermal well operable in the absence of well casing for heat transfer surfaces for maximizing thermal transfer to a circulating working fluid. Formulations for the working and drilling fluids are disclosed.

Abstract: A knife comprising a handle and a blade assembly. The blade assembly includes a blade, a tang, and blade assembly connection structure. The handle includes a receiver configured to receive the tang, and includes handle connection structure. The blade assembly connection structure and handle connection structure are arranged to releasably lock the blade assembly in an installed position on the handle with the tang in the tang receiver.

Abstract: A post driver for installing a post includes a post receiver. The post receiver has a post receiver body defining a post receiving space with an open end and an opposite closed end. The post receiving space is sized and shaped to receive an upper end portion of the post. The post receiver body has an outer surface. The post receiver includes a post receiver cover connected to the post receiver body and at least partially covering the outer surface of the post receiver body. A first handle is connected to the post receiver and a second handle is connected to the post receiver.

Abstract: A firearm accessory and associated components and methods. In one embodiment, a firearm accessory is configured to mount to a shotgun. The firearm accessory is configured to emit light to illuminate a target. The firearm accessory includes an accessory body that is removable from the shotgun and permits convenient battery replacement.

Abstract: A security enclosure, components thereof, and associated methods. In one embodiment, the security enclosure is sized and shaped to hold a firearm, and the security enclosure can be used with a monitor and an associated magnet. The security enclosure system includes first and second enclosure portions movable with respect to one another to open and close the system. The first enclosure portion includes a first holder, the second enclosure portion includes a second holder, and at least one of the first or second holders holds the security monitor in an interior when the enclosure is closed. The other of the at least one of the first or second holders holds the magnet in the interior when the enclosure is closed. The first and second holders are adjacent to each other when the enclosure is closed and are spaced apart from each other when the enclosure is open.

Abstract: A post driver and remover for the installation and removal of posts includes a post receiver having a post receiver body having a driving end and an opposite driven end. The post receiver body defines a post receiving space having an open end adjacent the driven end and a closed end adjacent the driving end. The post receiving space is sized and shaped to receive an upper end portion of one of the posts. The post receiver body also has a first extractor and a second extractor. The first extractor receives a first post of a first cross-sectional size or shape, and the second extractor has a different size or shape from the first extractor to receive a second post of a second cross-sectional size or shape.

Abstract: Operational protocol sequences for recovering energy from a thermally productive formation are disclosed. Sealing, drilling, multiranging, power production and distribution techniques in predetermined sequences for well formation are utilized to recover energy regardless of thermal gradient variation, formation depth and permeability and other anomalies or impedances.

Abstract: A shooting rest, components thereof, and associated methods. The shooting rest includes a frame, a forward firearm support connected to the frame, and a rear firearm support connected to the frame. The rear firearm support includes a stop configured to limit rearward movement of the firearm with respect to the frame when the firearm is fired. A liquid tank is supported by the frame and is configured to hold liquid to increase the effective mass of the shooting rest to reduce recoil felt by a shooter when the firearm is fired.

Abstract: A knife comprising a handle and a blade assembly. The blade assembly includes a blade, a tang, and blade assembly connection structure. The handle includes a receiver configured to receive the tang, and includes handle connection structure. The blade assembly connection structure and handle connection structure are arranged to releasably lock the blade assembly in an installed position on the handle with the tang in the tang receiver.

Abstract: Wellbore synthesis techniques are disclosed suitable for use in geothermal applications. Embodiments are provided where open hole drilled wellbores are sealed while drilling in sequenced operations with utilization of phase change materials to form an impervious layer at the wellbore/formation interface in high temperature applications. The techniques may be chemical, thermal, mechanical, biological and are fully intended to irreversibly damage the formation in terms of the permeability thereof. With the permeability negated, the wellbore may be used to create a closed loop surface to surface geothermal well operable in the absence of well casing for heat transfer surfaces for maximizing thermal transfer to a circulating working fluid. Formulations for the working and drilling fluids are disclosed.

Abstract: A firearm accessory and associated components and methods. In one embodiment, a firearm accessory is configured to mount to a shotgun. The firearm accessory is configured to emit light to illuminate a target. The firearm accessory includes an accessory body that is removable from the shotgun and permits convenient battery replacement.